The Xfce development team is pleased to announce that the second and hopefully last release candidate of the upcoming Xfce 4.4 desktop is available for download now. The release focuses primarily on bug fixes and optimizations; see the release notes for a complete list of changes. The source tarballs and the graphical installer are available from the download page.

I notice you are using the tango theme. I'm surprised how many of these I see around as XFCE 4.4 does not include freedesktops Icon naming standards. Which is something I personally feel is missing from this release.

@hal2k1 I love wikipedia stuff, but that is just a poor article. a more fun read its gnome but its still a good read.